Introduction to Sleep Apnea Diagnosis
Obstructive Sleep Apnea (OSA) is a prevalent respiratory disorder characterized by repetitive episodes of partial or complete upper airway obstruction during sleep. These episodes lead to oxygen desaturation and sleep fragmentation, which can significantly increase the risk of cardiovascular disease, metabolic disorders, and daytime cognitive impairment. Traditionally, the gold standard for diagnosing OSA has been Type 1 Polysomnography (PSG1), which is conducted in a controlled laboratory environment under the supervision of a technician. However, the rise of telemedicine and the need for more accessible diagnostic tools have led to the widespread adoption of Home Sleep Apnea Tests (HSAT), specifically Type 3 portable monitoring. One of the critical questions facing sleep specialists is the minimum required recording time (RRT) needed for these tests to provide a reliable Apnea-Hypopnea Index (AHI) that reflects a full night of sleep.
